JPH1172285A - Separation rectifying apparatus for mixed gas - Google Patents

Separation rectifying apparatus for mixed gas

Info

Publication number
JPH1172285A
JPH1172285A JP10094894A JP9489498A JPH1172285A JP H1172285 A JPH1172285 A JP H1172285A JP 10094894 A JP10094894 A JP 10094894A JP 9489498 A JP9489498 A JP 9489498A JP H1172285 A JPH1172285 A JP H1172285A
Authority
JP
Japan
Prior art keywords
section
rectifying
columns
rectification
mixed gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10094894A
Other languages
Japanese (ja)
Inventor
Olivier Bruder
オリビエ・ブリュデ
Bernard Darredeau
ベルナール・ダルルドー
Jean Yves Lehman
− イブ・レーマン ジャン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of JPH1172285A publication Critical patent/JPH1172285A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04703—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser being arranged in more than one vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/02—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pump in general or hydrostatic pressure increase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/62—Details of storing a fluid in a tank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/90—Triple column
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/902—Apparatus
    • Y10S62/905—Column
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/902—Apparatus
    • Y10S62/911—Portable

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

PROBLEM TO BE SOLVED: To make a cold box compact and reduce idle space within it by arranging top parts of two towers among a plurality of columns at a same height and providing at least two towers among a plurality of the columns with a same vertical size. SOLUTION: For example, a separation rectifying apparatus for nitrogen and oxygen has a two-tower column 1 comprising a first rectifying part and a second rectifying part in a cold box 9, and the second rectifying part comprises two sections of a section 3A and a section 3B. Tower top parts of the section 3A and the section 3B of the second rectifying part are arranged at a same height. A gas is supplied from the first section 3A to a tower bottom part of the second section 3B of the second rectifying part and a gas from a tower bottom part of the second section 3B is supplied to the tower top part of the first section 3A. Vertical size of the second section 3B of the second rectifying part is equal to a vertical dimension obtained by combining the first section 3A of the second rectifying part and a first rectifying part 2.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、精留法に基づく混
合ガスの分離精留装置に係り、特に、低温精留に基づく
分離精留装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating and rectifying a mixed gas based on a rectification method, and more particularly to a separation and rectification apparatus based on low-temperature rectification.

【０００２】[0002]

【従来の技術】低温精留装置において、カラム（精留
塔）を外気から断熱するため、いわゆるコールドボック
スの中に多数のカラムが収容される。このコールドボッ
クスの高さは、通常、カラムの内の最大の垂直方向寸法
によって決定される。今日において、酸素含有量が１ｐ
ｐｍ未満のアルゴンを低温精留によって得るためには、
アルゴン用のカラムの中に２５０段程度のトレー（たな
板）を設ける必要がある。その結果、コールドボックス
の高さが非常に高くなり、不安定性の問題が生ずる。そ
れに加えて、コールドボックスの中に多くの空きスペー
スが生まれるので、それらのスペースを断熱材で充填し
なければならない。2. Description of the Related Art In a low-temperature rectification apparatus, a large number of columns are accommodated in a so-called cold box in order to insulate a column (rectification tower) from outside air. The height of this cold box is usually determined by the largest vertical dimension of the column. Today, the oxygen content is 1p
In order to obtain less than pm of argon by low-temperature rectification,
It is necessary to provide about 250 trays (plates) in an argon column. As a result, the height of the cold box becomes very high, causing an instability problem. In addition, a lot of empty space is created in the cold box, which must be filled with insulation.

【０００３】ＤＥ−Ａ−２６３３２７２号公報には、二
塔式の精留装置が記載されている。そこでは、中圧精留
部が二つのセクションから構成され、これら二つのセク
ションの塔頂部は同一の高さに配置されている。[0003] DE-A-26 33 272 describes a two-column rectification device. There, the medium pressure rectification section is composed of two sections, the tops of these two sections being arranged at the same height.

【０００４】[0004]

【発明が解決しようとする課題】本発明の目的は、コー
ルドボックスがよりコンパクトになり、その中の空きス
ペースを減らすことが可能な混合ガスの分離精留装置を
提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for separating and rectifying a mixed gas in which a cold box can be made more compact and an empty space therein can be reduced.

【０００５】[0005]

【課題を解決するための手段】本発明の混合ガスの分離
精留装置は、複数のカラムを備え、精留によって混合ガ
スを分離する装置において、前記複数のカラムの内の二
基の塔頂部の高さが同一で、且つ、前記複数のカラムの
内の少なくとも二基の垂直方向寸法が同一であることを
特徴とする。According to the present invention, there is provided an apparatus for separating and rectifying a mixed gas comprising a plurality of columns, wherein the apparatus for separating a mixed gas by rectification comprises two columns at the top of the plurality of columns. And the vertical dimensions of at least two of the plurality of columns are the same.

【０００６】本発明の一実施態様において、前記複数の
カラムの内の二基の垂直方向寸法が同一で、且つ、それ
らの二基の塔頂部の高さが同一である。In one embodiment of the present invention, two of the plurality of columns have the same vertical dimension, and the height of the top of the two columns is the same.

【０００７】あるいは、本発明の他の実施態様におい
て、前記複数のカラムの内の三基の塔頂部の高さが同一
である。[0007] Alternatively, in another embodiment of the present invention, the height of the tops of three of the plurality of columns is the same.

【０００８】あるいは、本発明の他の実施態様におい
て、前記複数のカラムの塔頂部の高さが全て同一であ
る。Alternatively, in another embodiment of the present invention, the heights of the tops of the plurality of columns are all the same.

【０００９】あるいは、他の実施態様において、本発明
の混合ガスの分離精留装置は、空気分離用の装置であっ
て、中圧力で運転することが可能な第一精留部と、第一
セクション及び第二セクションの二つのセクションを備
え、低圧力で運転することが可能な第二精留部と、前記
第一精留部と前記第一セクションとを、互いに熱的に結
合するリボイラ及び凝縮器と、前記第一精留部から前記
第二セクションへ流体を送る手段と、前記第一セクショ
ンの塔頂部の気体を、第二セクションの塔底部に送る手
段と、前記第二セクションの塔底部の中の液体を、第一
セクションの塔頂部に送る手段と、を備える。Alternatively, in another embodiment, the mixed gas separation and rectification apparatus of the present invention is an apparatus for air separation, wherein the first rectification section operable at a medium pressure, A second rectification section comprising two sections, a section and a second section, capable of operating at a low pressure, a reboiler for thermally coupling the first rectification section and the first section to each other, and A condenser, means for sending fluid from the first rectification section to the second section, means for sending gas at the top of the first section to the bottom of the second section, and a column for the second section Means for sending the liquid in the bottom to the top of the first section.

【００１０】なお、上記の構成において、更に、前記第
二セクションの垂直方向寸法を、前記第一セクションと
前記第一精留部とを合わせた垂直方向寸法と同一にする
こともできる。In the above configuration, the vertical dimension of the second section may be the same as the vertical dimension of the first section and the first rectifying section.

【００１１】あるいは、他の実施態様において、本発明
の混合ガスの分離精留装置は、空気分離用の四個の精留
部を備え、その内の二個は、アルゴンが濃縮された混合
物を分離するため精留部である。Alternatively, in another embodiment, the apparatus for separating and rectifying a mixed gas of the present invention includes four rectification sections for air separation, two of which are provided with an argon-enriched mixture. It is a rectification section for separation.

【００１２】あるいは、本発明の他の実施態様におい
て、前記複数のカラムの内の一基の垂直方向寸法は、他
の少なくとも一基の垂直方向寸法と比べて小さく、且
つ、前者のカラムの下側に貯蔵タンクが配置される。Alternatively, in another embodiment of the present invention, the vertical dimension of one of the plurality of columns is smaller than the vertical dimension of the other at least one, and the vertical dimension of the column is lower than that of the other column. A storage tank is arranged on the side.

【００１３】[0013]

【発明の実施の形態】以下に、図面を用いて本発明に基
づく混合ガスの分離精留装置の例について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of an apparatus for separating and rectifying a mixed gas according to the present invention will be described with reference to the drawings.

【００１４】（例１）図１に、本発明に基づく酸素及び
アルゴンの分離精製装置の一例の概略構成図を示す。(Example 1) FIG. 1 is a schematic diagram showing an example of an apparatus for separating and purifying oxygen and argon according to the present invention.

【００１５】図１に示す装置は二塔式のカラム１を備
え、一方のカラムは中圧精留部２及び低圧精留部３から
構成されている。中圧精留部２と低圧精留部３は、リボ
イラ及び凝縮器４を介して互いに熱的に結合されてい
る。アルゴン用精留部は、二つのセクション５Ａ及び５
Ｂから構成され、低圧精留部３からアルゴンが濃縮され
た流体が供給される。上記のアルゴン用精留部の二つの
セクション５Ａ、５Ｂの塔頂部、及び、低圧精留部３の
塔頂部は、同一の高さに配置されている。The apparatus shown in FIG. 1 is provided with a two-column type column 1, one of which comprises a medium-pressure rectification section 2 and a low-pressure rectification section 3. The medium pressure rectification section 2 and the low pressure rectification section 3 are thermally connected to each other via a reboiler and a condenser 4. The rectification section for argon has two sections 5A and 5A.
B, and a fluid in which argon is concentrated is supplied from the low-pressure rectification unit 3. The tops of the two sections 5A and 5B of the argon rectification section and the top of the low-pressure rectification section 3 are arranged at the same height.

【００１６】上記の構成は、ＥＰ−Ａ−６２８７７７号
公報に記載されているものに相当しているが、上記の公
報には、各カラムの塔頂部を全て同一の高さに配置する
ことについては開示されていない。The above structure corresponds to that described in EP-A-628777. However, the above publication discloses that all the column tops are arranged at the same height. Is not disclosed.

【００１７】液体窒素用の貯蔵タンク７は、アルゴン用
精留部５Ａの下側のスペースに配置される。The storage tank 7 for liquid nitrogen is arranged in a space below the rectifying section 5A for argon.

【００１８】コールドボックス９の中には、二塔式のカ
ラム１、アルゴン用精留部５Ａ、及び液体窒素用の貯蔵
タンク７が収容される。The cold box 9 contains the two-column type column 1, the rectification unit 5A for argon, and the storage tank 7 for liquid nitrogen.

【００１９】（例２）図２に、本発明に基づく窒素及び
酸素の分離精製装置の一例の概略構成図を示す。(Example 2) FIG. 2 shows a schematic diagram of an example of an apparatus for separating and purifying nitrogen and oxygen according to the present invention.

【００２０】図２に示す装置は二塔式のカラム１を備
え、低圧精留部は二つのセクション３Ａ及び３Ｂから構
成されている。The apparatus shown in FIG. 2 includes a two-column type column 1, and the low-pressure rectification section is composed of two sections 3A and 3B.

【００２１】これらの二つセクション３Ａ及び３Ｂの塔
頂部は、同一の高さに配置されている。第二セクション
３Ｂの塔底部には、第一セクション３Ａの塔頂部から気
体が供給され、一方、第一セクション３Ａの塔頂部に
は、第二セクション３Ｂの塔底部から気体が供給され
る。The tops of these two sections 3A and 3B are arranged at the same height. Gas is supplied to the bottom of the second section 3B from the top of the first section 3A, while gas is supplied to the top of the first section 3A from the bottom of the second section 3B.

【００２２】第二セクション３Ｂの垂直方向寸法は、第
一セクション３Ａと中圧精留部２とを合わせた垂直方向
寸法に一致している。The vertical dimension of the second section 3B is equal to the vertical dimension of the first section 3A and the intermediate pressure rectification section 2.

【００２３】本発明は、上記の例に示した構成に限定さ
れず、種々の変形を加えて実施することができる。The present invention is not limited to the configuration shown in the above example, but can be implemented with various modifications.

【００２４】例えば、図１及び図２に示したコンセプト
を組み合わせることによって、中圧精留部２、二つのセ
クション３Ａ及び３Ｂから構成される低圧精留部、及び
二つのセクション５Ａ及び５Ｂから構成されるアルゴン
用精留部、を備えた装置を構成することができる。この
場合、低圧精留部の第二セクション３Ｂを、アルゴン用
精留部の第一セクション５Ａの下側に配置することがで
きる（あるいは、その逆の配置も可能）。For example, by combining the concepts shown in FIG. 1 and FIG. 2, a medium pressure rectification section 2, a low pressure rectification section composed of two sections 3A and 3B, and two sections 5A and 5B are constituted. And an argon rectification unit to be used. In this case, the second section 3B of the low pressure rectification section can be arranged below the first section 5A of the argon rectification section (or vice versa).

【００２５】また、図２に示す構成に、更にアルゴン用
精留部を追加することも、当然、可能である。その場
合、そのアルゴン用精留部は、低圧精留部の二つのセク
ション３Ａ及び３Ｂから流体が供給される。It is of course possible to add an argon rectification section to the configuration shown in FIG. In that case, the argon rectification section is supplied with fluid from two sections 3A and 3B of the low pressure rectification section.

【００２６】また、図１に示す構成に、更に、酸素、窒
素あるいはアルゴンの貯蔵タンクを追加することも、当
然、可能である。その場合、その貯蔵タンクは、アルゴ
ン用精留部の第一セクション５Ａの下側に配置される。It is of course possible to add a storage tank for oxygen, nitrogen or argon to the configuration shown in FIG. In that case, the storage tank is located below the first section 5A of the argon rectification section.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明に基づく酸素及びアルゴンの分離精製装
置の概略構成図。FIG. 1 is a schematic configuration diagram of an apparatus for separating and purifying oxygen and argon according to the present invention.

【図２】本発明に基づく窒素及び酸素の分離精製装置の
概略構成図。FIG. 2 is a schematic configuration diagram of an apparatus for separating and purifying nitrogen and oxygen according to the present invention.

【符号の説明】[Explanation of symbols]

１・・・二塔式のカラム、 ２・・・中圧精留部（第一の精留部）、 ３・・・低圧精留部、 ３Ａ・・・低圧精留部の第一セクション（第二の精留部
の第一セクション）、 ３Ｂ・・・低圧精留部の第二セクション（第二の精留部
の第二セクション）、 ４・・・リボイラ及び凝縮器、 ５・・・アルゴン用精留部、 ５Ａ・・・アルゴン用精留部の第一セクション、 ５Ａ・・・アルゴン用精留部の第二セクション、 ７・・・液体窒素の貯蔵タンク、 ９・・・コールドボックス。DESCRIPTION OF SYMBOLS 1 ... Two tower type column, 2 ... Medium pressure rectification part (first rectification part), 3 ... Low pressure rectification part, 3A ... First section of low pressure rectification part ( The first section of the second rectification section), 3B ... the second section of the low pressure rectification section (the second section of the second rectification section), 4 ... the reboiler and condenser, 5 ... Argon rectification section, 5A: first section of argon rectification section, 5A: second section of argon rectification section, 7: liquid nitrogen storage tank, 9: cold box .

───────────────────────────────────────────────────── フロントページの続き (72)発明者 ベルナール・ダルルドー フランス国、78500 サルトルビル、リ ュ・デ・パビヨン 14 (72)発明者 ジャン − イブ・レーマン フランス国、94700 メゾン − アルフ ォール、ドメーヌ・シャトー・ガイヤール 27 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Bernard d'Ardor, France 78500 Sartreville, Rue des Pavillons 14 (72) Inventor Jean-Eve Lehmann France, 94700 Maison-Alfour, Domaine Chateau Gaillard 27

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】 複数のカラムを備え、精留によって混合
ガスを分離する装置において、前記複数のカラムの内の
二基の塔頂部の高さが同一で、且つ、前記複数のカラム
の内の少なくとも二基の垂直方向寸法が同一であること
を特徴とする混合ガスの分離精留装置。1. An apparatus for separating a mixed gas by rectification, comprising a plurality of columns, wherein the heights of two column tops in the plurality of columns are the same, and A mixed gas separation and rectification device characterized in that at least two vertical dimensions are the same. 【請求項２】 前記複数のカラムの内の二基の垂直方向
寸法が同一で、且つ、それらの二基の塔頂部の高さが同
一であることを特徴とする請求項１に記載の混合ガスの
分離精留装置。2. The mixing according to claim 1, wherein two of the plurality of columns have the same vertical dimension, and the heights of the tops of the two columns are the same. Gas separation and rectification equipment. 【請求項３】 前記複数のカラムの内の三基の塔頂部の
高さが同一であることを特徴とする請求項１または請求
項２に記載の混合ガスの分離精留装置。3. The apparatus for separating and rectifying a mixed gas according to claim 1, wherein the heights of the tops of three of the plurality of columns are the same. 【請求項４】 前記複数のカラムの塔頂部の高さが全て
同一であることを特徴とする請求項１から請求項３のい
ずれかに記載の混合ガスの分離精留装置。4. The apparatus for separating and rectifying a mixed gas according to claim 1, wherein the heights of the column tops of the plurality of columns are all the same. 【請求項５】 空気分離用の分離精留装置あって、 中圧力で運転することが可能な第一精留部と、 第一セクション及び第二セクションの二つのセクション
を備え、低圧力で運転することが可能な第二精留部と、 前記第一精留部と前記第一セクションとを、互いに熱的
に結合するリボイラ及び凝縮器と、 前記第一精留部から前記第二セクションへ流体を送る手
段と、 前記第一セクションの塔頂部の気体を、第二セクション
の塔底部に送る手段と、 前記第二セクションの塔底部の中の液体を、第一セクシ
ョンの塔頂部に送る手段と、 を備えたことを特徴とする請求項１から請求項４のいず
れかに記載の混合ガスの分離精留装置。5. A separation rectification device for air separation, comprising: a first rectification section operable at a medium pressure; and two sections, a first section and a second section, operated at a low pressure. A second rectifying section, a reboiler and a condenser that thermally couple the first rectifying section and the first section to each other, and from the first rectifying section to the second section. Means for sending a fluid; means for sending gas at the top of the first section to the bottom of the second section; means for sending liquid in the bottom of the second section to the top of the first section. 5. The apparatus for separating and rectifying a mixed gas according to claim 1, further comprising: 【請求項６】 前記第二セクションの垂直方向寸法は、
前記第一セクションと前記第一精留部とを合わせた垂直
方向寸法と同一であることを特徴とする請求項５に記載
の混合ガスの分離精留装置。6. The vertical dimension of the second section is:
The apparatus for separating and rectifying a mixed gas according to claim 5, wherein the vertical dimension of the first section and the first rectifying section is the same. 【請求項７】 空気分離用の四個の精留部を備え、その
内の二個は、アルゴンが濃縮された混合物を分離するた
めの精留部であることを特徴とする請求項１から請求項
６のいずれかに記載の混合ガスの分離精留装置。7. The rectifier according to claim 1, comprising four rectifiers for air separation, two of which are rectifiers for separating a mixture enriched with argon. The mixed gas separation and rectification device according to claim 6. 【請求項８】 前記複数のカラムの内の一基の垂直方向
寸法は、他の少なくとも一基の垂直方向寸法と比べて小
さく、且つ、前者のカラムの下側に、貯蔵タンクが配置
されることを特徴とする請求項１から請求項７のいずれ
かに記載の混合ガスの分離精留装置。8. A storage tank is disposed below one of the plurality of columns, wherein one of the columns has a smaller vertical dimension than at least one of the other columns. The apparatus for separating and rectifying a mixed gas according to any one of claims 1 to 7, wherein:
JP10094894A 1997-04-11 1998-04-07 Separation rectifying apparatus for mixed gas Pending JPH1172285A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9704484 1997-04-11
FR9704484A FR2761897B1 (en) 1997-04-11 1997-04-11 INSTALLATION FOR SEPARATING A GAS MIXTURE BY DISTILLATION

Publications (1)

Publication Number Publication Date
JPH1172285A true JPH1172285A (en) 1999-03-16

Family

ID=9505806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10094894A Pending JPH1172285A (en) 1997-04-11 1998-04-07 Separation rectifying apparatus for mixed gas

Country Status (4)

Country Link
EP (1) EP0870524A1 (en)
JP (1) JPH1172285A (en)
CA (1) CA2235054A1 (en)
FR (1) FR2761897B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012529616A (en) * 2009-06-12 2012-11-22 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Apparatus and method for air separation by cryogenic distillation
JP2016515188A (en) * 2013-03-06 2016-05-26 リンデ アクチエンゲゼルシャフトＬｉｎｄｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ Air separation device, method for obtaining a product containing argon, and method for building an air separation device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691532B2 (en) 2001-11-13 2004-02-17 The Boc Group, Inc. Air separation units
FR2913758B3 (en) * 2007-03-12 2009-11-13 Air Liquide METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
CN102425917B (en) * 2011-08-30 2013-04-10 杭州杭氧股份有限公司 Multifunctional rectifying tower
EP3614084A1 (en) 2018-08-22 2020-02-26 Linde Aktiengesellschaft Method and installation for cryogenic decomposition of air

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633272A1 (en) * 1976-07-23 1978-01-26 Linde Ag Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure
DE4317916A1 (en) * 1993-05-28 1994-12-01 Linde Ag Process and apparatus for the isolation of argon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012529616A (en) * 2009-06-12 2012-11-22 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Apparatus and method for air separation by cryogenic distillation
JP2016515188A (en) * 2013-03-06 2016-05-26 リンデ アクチエンゲゼルシャフトＬｉｎｄｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ Air separation device, method for obtaining a product containing argon, and method for building an air separation device

Also Published As

Publication number Publication date
FR2761897A1 (en) 1998-10-16
FR2761897B1 (en) 1999-05-14
EP0870524A1 (en) 1998-10-14
CA2235054A1 (en) 1998-10-11

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